The Adventures of Sherlock Holmes follow the titular detective and his partner, surgeon and amateur investigator Dr. John Watson, as they solve crimes and plumb the nature of human thought in Victorian London. Holmes is an aesthete and a logician, a student of deductive reasoning who sometimes grows frustrated with the illogical world around him, retreating into art or fixation on a case. Watson is his foil, a collected and charming man who grounds his friend and partner in the real world.